Kosa si Kosa 
Nyenyo Kenga Mumbo 
 - NAIROBI  OXFORD UNIVERSITY PRESS  2009 
 - 64 p.:  18 cm. 
<br/><br/><label>ISBN: </label>9780195734782 
<br/><br/><label>LC Class. No.: </label>PL 8704 .M86 2009